Just got this from the company
"Our Retrievor uses both A-GPS (Assisted buy cell network) and also Autonomous GPS. We have partnered with a VSat partner to provide real-time (bi-directional) tracking even when in remote locations. This information includes long/lat and altitude and is relayed back to our online server platform whereby users (with your login details) can follow you every move whether 10,000ft in the air of miles out at sea. They can access this via Smartphone, PC or Tablet."
So yes, it will track anywhere.
Would like to see the link to the test flight - not sure if it's the actual gadget that Retrievor are to make but their must be prototypes in testing.
What I like is the size and that it has a solar panel - my current data logger runs maybe 24 hours continuous but just putting it in the plane and in effect forgetting about it very good - the price is high but a big discount comes from the crowd funding - if enough people were interested I would get one of the trader packages - but since there are a handful of flying light aircraft here everyone would have to want several.